Now it seems progress has become literally impossible because the chess move + the captcha includes digits that add up to more than 25. I guess having to restart is intended to be part of the game, or is this a bug?
This is indeed what ended up transpiring, but only after trying really hard to figure it out all the while thinking the meanings of gold and green were the opposite of eachother.
I take puzzles way too seriously, and I suck at word puzzles.